CN106023281A - Manufacture method of grating developed image - Google Patents

Manufacture method of grating developed image Download PDF

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CN106023281A
CN106023281A CN201610344008.9A CN201610344008A CN106023281A CN 106023281 A CN106023281 A CN 106023281A CN 201610344008 A CN201610344008 A CN 201610344008A CN 106023281 A CN106023281 A CN 106023281A
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pixels
grating
length
straightway
manufacture method
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CN106023281B (en
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阙云
徐田宝
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/002D [Two Dimensional] image generation
    • G06T11/20Drawing from basic elements, e.g. lines or circles
    • G06T11/203Drawing of straight lines or curves
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00General purpose image data processing
    • G06T1/0021Image watermarking

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  • Engineering & Computer Science (AREA)
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Abstract

The invention provides a manufacture method of a grating developed image. The method comprises the following steps that a main printing image of a preset resolution is generated, a pixel length corresponding to a grating constant of a preset matching grating in the resolution is calculated by taking the length of a pixel in the preset resolution as a metering unit, multiple line segments parallel in parallel and at same interval are generated in the main printing image to form a background layer, and hidden information appeared in the matched grating is made in the background layer. The manufacture method of the grating developed image is simple in technology, the matched grating needs not to be processed, hidden information in a decryption area is unique and exclusive and is not mixed with other types of decryption tools in solution. The hidden information manufactured via the method can be directly applied to intellectual reading materials of children and teaching materials and the like, can be used to cultivate the learning interest and reading capability of the children effectively, and realize teaching in joy.

Description

Grating developed image manufacture method
Technical field
The present invention relates to print image concealing technology field, show in particular to a kind of grating Shadow image formation method.
Background technology
Cultivation children's reading books, the interest of learning knowledge are the most important things of formative education.So And books form that existing a lot of children of being suitable for read is dry as dust, lack novelty and interest Taste, is difficult to evoke the learning enthusiasm of children and reading interest.For this phenomenon, at figure Book is designed there is deciphering function " deciphering district ", and deciphered by decryption card, presumably fixed Certain feeling of freshness and infinite enjoyment can be brought to the study of children, can yet be regarded as be one more Feasible method.
The most domestic processing technology with image concealing technology sets foot in mostly in enterprise product Anti-counterfeit package field in, and processing technology is the most smart, it is loaded down with trivial details to make, and developed image obscures Unclear, even cost of manufacture virtual height, this sampling technology is not suitably applied juvenile's class books Printing in.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of grating developed image making side Method, is applied in figure book publishing, to cultivate the learning interest of children, forms good study Atmosphere, reaches the purpose taught through lively activities.
The grating developed image manufacture method that present pre-ferred embodiments provides, including: generate There is the printing master map of default resolution;Length with a pixel under described default resolution Degree is measurement unit, calculates the grating constant pair at next preset matching grating of this resolution The length in pixels answered;Some parallel and equally spaced straightway is generated in described printing master map Forming background layer, the length in pixels that the live width of described straightway is corresponding is intersegmental with adjacent two straight lines Length in pixels sum corresponding to the vertical dimension pixel corresponding equal to described grating constant long Degree;The hiding information that described matched FBG can be used to manifest is made in described background layer, Hiding information includes any one or more in word and figure.
Preferably, described printing master map is to generate under pattern bitmap.
Preferably, the described a length of metering with a pixel under described default resolution is single Position, calculates the pixel the grating constant of next preset matching grating of this resolution is corresponding long The step of degree includes: calculate in next inch of corresponding length in pixels of described default resolution; According to calculating formulaDraw the length in pixels that the grating constant of matched FBG is corresponding, its In, NpBeing one inch of corresponding length in pixels, f is per inch on described preset matching grating Interior groove sum, N is the length in pixels that described grating constant is corresponding.
Preferably, described in described printing master map, some parallel and equally spaced straight line is generated Section is formed in the step of background layer, and the angle of inclination of described straightway relatively horizontal orientation is 45 Degree, and length in pixels corresponding to the width of described straightway is intersegmental with described adjacent two straight lines The difference of the length in pixels that vertical dimension is corresponding is less than or equal to 3 pixels more than or equal to 2 pixels, its Described in length in pixels corresponding to the intersegmental vertical dimension of adjacent two straight lines more than described straight line The length in pixels corresponding to width of section.
Preferably, described making in described background layer can use described matched FBG to manifest The step of hiding information include: under grayscale mode, described background layer imports to be concealed Information, described information to be concealed forms a new figure layer;Delete described letter to be concealed Cease and retain the constituency of described figure layer;Again under pattern bitmap, by the figure layer constituency retained The line segment of copy background layer forms another new figure layer, and the direction along vertical described straightway is moved Described new figure layer, the distance of movement more than 0 less than described adjacent two straight lines intersegmental vertical away from From corresponding length in pixels.
Preferably, the constituency of described figure layer move along the direction being perpendicular to described straightway away from From hang down intersegmental with adjacent two straight lines of the length in pixels corresponding more than the live width of described straightway The meansigma methods of the length in pixels sum that straight distance is corresponding and intersegmental less than described adjacent two straight lines Length in pixels corresponding to vertical dimension.
Preferably, the method also includes: described moving along the direction of vertical described straightway Before the constituency of figure layer, the image model of described printing master map is converted to position from grayscale mode Chart-pattern.
Preferably, the resolution of described printing master map is 1200dpi.
Preferably, the groove sum in described matched FBG per inch is between 80~140.
Preferably, described method also includes: described matched FBG is being covered in described printing When manifesting hiding information on master map, the groove on described matched FBG is parallel to described background Straightway on layer.
In the grating developed image manufacture method that the present invention provides, according to preset matching grating Length in pixels corresponding to grating constant generates some parallel and equally spaced in printing master map Straightway, formed " deciphering region " Background From Layer, then in Background From Layer make hide Word or figure.The technique of this manufacture method is simple, it is not necessary to carry out any to matched FBG Process, directly by hanging down between width and adjacent two straightways of the described straightway of adjustment Straight distance can make the development effect of matched FBG reach more visible state, and is fabricated to " deciphering region " in hiding information there is uniqueness and exclusiveness, the most not with his class solution Close instrument is mutually mixed to be solved.With " hiding information " made by this manufacture method, directly should Teach in auxiliary class books for juvenile's class intellectual reading matter and teaching material, can effectively cultivate children Learning interest and reading ability, real realization is taught through lively activities.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be in embodiment The required accompanying drawing used clearly and succinctly is introduced.The following drawings should be understood to only illustrate Certain embodiments of the present invention, is therefore not construed as the restriction to scope, for ability From the point of view of the those of ordinary skill of territory, on the premise of not paying creative work, it is also possible to according to this A little accompanying drawings obtain other relevant contents.
The flow process of a kind of grating developed image manufacture method that Fig. 1 provides for the embodiment of the present invention Figure;
The application grating developed image manufacture method that Fig. 2 provides for the embodiment of the present invention makes figure The initial fabrication step schematic diagram of background layer during book deciphering region;
The application grating developed image manufacture method that Fig. 3 provides for the embodiment of the present invention makes figure During book deciphering region, background layer is schematic diagram when 200% at displaying ratio;
Fig. 4 is the schematic diagram after the background layer shown in Fig. 3 imports information to be concealed;
Fig. 5 is showing after deleting information to be concealed and reservation figure layer constituency on the basis of Fig. 4 It is intended to;
The application grating developed image manufacture method that Fig. 6 provides for the embodiment of the present invention has made The schematic diagram of the hiding information in " the deciphering region " that become;
Fig. 7 makes in application grating developed image manufacture method for what the embodiment of the present invention provided The displacement of books deciphering region stylish figure layer calculates schematic diagram;
The application grating developed image manufacture method that Fig. 8 provides for the embodiment of the present invention makes figure Behind book deciphering region, the film of output is drawn a design and deciphers effect schematic diagram.
Detailed description of the invention
In order to reach to make the purpose of the embodiment of the present invention, make technical scheme and making advantage more clear Chu, below in conjunction with the accompanying drawing in the embodiment of the present invention, to the technical side in the embodiment of the present invention Case carries out clearly, is fully described by.Obviously, described embodiment is that a part of the present invention is real Execute example rather than whole embodiments.Generally herein described in accompanying drawing and illustrate this The assembly of bright embodiment can be arranged with various different configurations and design.
It should also be noted that similar label and letter expression similar terms in following accompanying drawing, therefore, The most a certain Xiang Yi accompanying drawing is defined, then need not it is carried out in accompanying drawing subsequently Definition and explanation further.
In describing the invention, it should be noted that term " " center ", " on ", " vertically ", Orientation or the position relationship of the instruction such as " level " are based on orientation shown in the drawings or position relationship, It is for only for ease of and describes the present invention and simplify description rather than instruction or the making of hint indication Method must have specific orientation, with specific azimuth configuration and operation, be not understood that For limitation of the present invention.
Therefore, detailed description not purport to the embodiments of the invention provided in the accompanying drawings below Limit the scope of claimed invention, but be merely representative of the selected enforcement of the present invention Example.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creativeness The every other embodiment obtained under work premise, broadly falls into the scope of protection of the invention.
Refer to Fig. 1, be the grating developed image manufacture method of present pre-ferred embodiments offer Flow chart, be it should be noted that grating of the present invention development pattern-producing method not with The particular order of Fig. 1 and the following stated is for limiting.Idiographic flow shown in Fig. 3 will be entered below Row describes in detail.
Step S101, generates the printing master map with default resolution.
In the present embodiment, available graphics software, such as Photoshop, at pattern bitmap or A digital document with default resolution (such as 1200dpi), this numeral is generated under grayscale mode The length and width size of file can be arranged according to actual needs, as being set to 6 cm x 6 centimetres, Obtain described printing master map.
Step S102, with a length of measurement unit of a pixel under described default resolution, Calculate in length in pixels corresponding to the grating constant of next preset matching grating of this resolution.
Grating constant is the distance between grating two groove, is commonly called as pitch.Owing to making printing On master map during the hiding information in " deciphering region ", the width of required straightway can not be with millimeter Measure, be unable to reach making purpose the most at all, therefore need with the metering list less than millimeter Position, in the present embodiment, uses " pixel ".The length of known different resolution next one pixel Degree is different, will calculate the length in pixels that grating constant is corresponding under described default resolution, Firstly the need of conversing one inch of length in pixels corresponding under this default resolution, then root According to calculating formulaDraw the length in pixels that the grating constant of matched FBG is corresponding, Qi Zhongcan Amount NpRepresenting one inch of corresponding length in pixels, parameter f represents described preset matching grating The groove sum that upper per inch comprises, parameter N represents that the grating constant of described matched FBG is corresponding Length in pixels.
Step S103, generates some parallel and equally spaced straightway in described printing master map Forming background layer, the length in pixels that the live width of described straightway is corresponding is intersegmental with adjacent two straight lines Length in pixels sum corresponding to the vertical dimension pixel corresponding equal to described grating constant long Degree.
After calculating the grating constant of described matched FBG, generate some parallel in printing master map And equally spaced straightway forms background layer.Wherein, the pixel that the width of described straightway is corresponding A length of N1, length in pixels corresponding to vertical dimension between adjacent two straightways is N2。N1With N2The sum length in pixels and adjacent two straightways corresponding equal to the width of N, i.e. straightway it Between length in pixels sum corresponding to vertical dimension equal to the grating constant pair of described matched FBG The length in pixels answered.
Preferably, the some straightway relatively horizontal orientations generated have certain inclination angle Degree, such as 45 degree, and length in pixels corresponding to the width of straightway and described adjacent two straight lines The difference of the length in pixels that intersegmental vertical dimension is corresponding is less than or equal to 3 pictures more than or equal to 2 pixels Element, length in pixels corresponding to the intersegmental vertical dimension of the most adjacent two straight lines is more than described straight line The length in pixels corresponding to width of section, i.e. N2With N1Difference be less than or equal to more than or equal to 2 pixels 3 pixels, and N2>N1
Step S104, makes in described background layer and described matched FBG can be used to manifest The information of hiding, hiding information includes any one or more in word and figure.
The specific implementation making hiding information to be manifested in background layer is, gray scale mould Under formula, importing information to be concealed in described background layer, described information to be concealed is formed One new figure layer;Then delete described information to be concealed and retain the constituency of described figure layer, And the image model of printing master map is converted to pattern bitmap by grayscale mode;Artwork in place again Under formula, with the true lines of the figure layer constituency copy background layer retained, formed and newly scheme layer, and Described new figure layer is moved in direction along vertical described straightway, the distance of movement should be greater than 0 and The length in pixels that the vertical dimension intersegmental less than adjacent two straight lines is corresponding, newly schemes the line segment of layer Mobile to its former position between affiliated straightway and adjacent straightway.
Preferably, when moving described new figure layer along the direction of vertical described straightway, it is After shift position be in the line segment of new figure layer former belonging to straightway and adjacent straightway Between the position of upper middle.Specifically, described new figure layer is along being perpendicular to described straightway The distance that moves of the direction length in pixels corresponding more than the live width of described straightway with adjacent The meansigma methods of the length in pixels sum that the intersegmental vertical dimension of two straight lines is corresponding and less than described The length in pixels that the intersegmental vertical dimension of adjacent two straight lines is corresponding, the distance i.e. moved should be greater than (N2+N1)/2 and less than N2
So far, completing of the hiding information printed on master map in " deciphering region ".Made " deciphering region " film can be gone out draw a design or be printed as book, more described matched FBG is covered " deciphering region " develops.During it should be noted that matched FBG is decrypted development, It covers when " deciphering region " is upper, grating line should with in background layer when making " deciphering region " Straightway parallel, the most just can present optimal deciphering effect, hiding information could be clear Clear displays.Such as, it is 45 when the angle of inclination of shown straightway relatively horizontal orientation When spending, when matched FBG is decrypted development, the optimum incline angle of its groove relatively horizontal orientation Degree is also 45 degree, and that now hides information manifests best results.
It addition, in the present embodiment, the hiding information in " deciphering region " has and preferably makes effect When fruit refers to be decrypted development by described matched FBG, " information hidden " can clearly may be used See, just look at less than zebra-stripe (due to grating material the diffraction of light is formed chequered with black and white Striped, is commonly called as zebra-stripe).At the hiding letter completed on one-step print master map in " deciphering region " After the making of breath, can judge to make effect according to this judgment criteria, if dissatisfied, the most repeatable Above-mentioned making step also finely tunes hanging down between the width of described straightway, adjacent straight line segment accordingly The parameters such as the angle of inclination of straight distance and straightway relatively horizontal orientation are to reach final satisfied Making effect.
The grating developed image manufacture method that the present embodiment provides is particularly suited for making books solution Close region." deciphering region " is applied and teaches auxiliary class books at juvenile's class intellectual reading matter and teaching material In, little readers can be allowed to experience novelty, then produce learning interest, effectively promote child Learning capacity.The most just as a example by making books deciphering region, it is specifically described the present embodiment and carries The specific implementation of the grating developed image manufacture method of confession.
When making books deciphering region, the resolution of printing master map should be 1200dpi, and presets The groove sum that matched FBG should be in per inch is the column mirror grating between 80~140, originally shows Example uses the post mirror light that groove sum in per inch is 100 delete.
After the resolution determining printing master map and matched FBG, needs calculate and in resolution are Under 1200dpi, the length in pixels that the grating constant of matched FBG is corresponding, concrete calculating process Being referred to, but be not limited to, following method realizes:
After the length of known 1200dpi next one pixel, utilize the side of computer scale comparison Method, show that the conversion formula between 1 millimeter and this resolution next one pixel is 1 millimeter of ≈ 47 Pixel.Have again, 1 inch=2.54 centimetres=25.4 millimeters, so obtaining 1 inch=25.4 millis Rice ≈ 25.4 × 47 pixel ≈ 1193.8 pixel.
Afterwards, calculating formula is usedDraw the pixel that the grating constant of matched FBG is corresponding Length, wherein NpApproximating 1193.8 pixels, f is equal to 100, finally obtains N and approximates 10.938 pixels, in order to easy to make, obtain integer value 11 picture after being rounded up by N here The column mirror grating of a 100 grooves length in pixels under with 1200dpi in element, i.e. per inch During for measurement unit, length in pixels corresponding to its grating constant is 11 pixels.
After obtaining the length in pixels that the grating constant of matched FBG is corresponding, and then it needs to be determined that straight The vertical dimension pair between length in pixels and adjacent two straightways corresponding to the width of line segment The length in pixels answered.Straightway the most slightly or too carefully all can affect the making effect in " deciphering region ", The color lump blackout making to be hidden in the word in " deciphering region " or figure is presented the most slightly is sent out by line segment Secretly, the most unsightly, line segment too carefully may not reach again the purpose of hidden text or figure, so The line segment choosing proper width is particularly significant.Finding after repeatedly practice, the width of straightway should Less than the vertical dimension between adjacent two straightways, and differ from 2~3 pixels between the two and be advisable, this The color lump of the implicit word in " deciphering region " that sample is not only imprinted on books will not turn black obfuscation, And can preferably hidden text or figure.Thus, in this example, the straight line used The width of section is 4 pixels, and the vertical dimension between adjacent two straightways is 7 pixels, both it The length in pixels corresponding with the grating constant being exactly equal to matched FBG.
Based on above-mentioned preparation, the hiding letter in " deciphering region " will be specifically described below The manufacturing process of breath, as follows:
First, at described graphics software, in Photoshop, perform newly-built-pattern-bitmap, Generating a dimensional parameters is 6 cm x 6 centimetres, and resolution is the digital document of 1200dpi, Obtain printing master map.
Secondly, in described printing master map, each one width of picture is straightway and the width of 4 pixels Being the straightway of 7 pixels, the angle of inclination of two line segment relatively horizontal orientations is 45 degree, its In, width is that the straightway of 7 pixels uses as the interim spacing that adjusts.
Again, in printing master map, copy straightway that described width is 4 pixels once, and Being grayscale mode by image mode transform, image shows and changes 300% into, and adjusting two width is Spacing between 4 pixel straightways, making the most only to be spaced a width is the straight of 7 pixels Line segment, as shown in Figure 2.Then the straightway that this width is 7 pixels is deleted, and viscous with copy The straightway that the Form generation of patch is some parallel and equally spaced width is 4 pixels, such as Fig. 3 Background layer in the printing master map showing under 200% displaying ratio.
Finally, background layer adds word to be concealed, as shown in Figure 4, then chooses literary composition Word, deletes word to be concealed reservation figure layer constituency (dashed region shown in Fig. 5), then The true lines utilizing the figure layer constituency copy background layer retained in background layer are formed newly schemes layer, and Utilize arrow to move described new figure layer along the direction of vertical described straightway, make line segment that mistake to occur Position, and the lines that copied of new figure layer should move the position of the upper middle between adjacent two line segments It is set to preferably, specifically refer to Fig. 6.
For the movement of new figure layer, can use after first moving horizontally certain distance, more vertically move Dynamic mode realizes newly scheming vertically moving of the relatively straight line segment of layer.Assume with d1Represent new figure layer Move horizontally distance, d2Represent the vertical displacement of new figure layer, as it is shown in fig. 7, can obtain:
Wherein β=45 ° Have again:Obtain 1.5 < x≤2.
Wherein, this boundary condition of x≤2 allows for newly scheming layer and should move between two line segments The position of upper middle and set.In different embodiments, different limits can be used Dividing value limits " upper middle " this position so that the hiding information in " deciphering region " obtains Obtain and preferably make effect.
After hiding information in " deciphering region " completes, the film can be gone out and draw a design or be printed as Book, and matched FBG (decryption card) covering is decrypted on " deciphering region ".Institute in Fig. 8 The film being shown as output is drawn a design and covers the schematic diagram after matched FBG is decrypted development.
It addition, in order to make dullness matched FBG sheet more beautiful, can print in lenticular lenses and The exquisite pattern that books are relevant, makes lovely 3D stereotome, to excite little reader's Buy books desire.
Especially, it should be noted that, the manufacture method of this grating development figure is applicable not only to Existing lenticular lenses, it is also possible to make in common PVC (polrvinyl chloride) clear plastic articles With.Difference is: there is not groove on common PVC transparent plastic sheet, it is not necessary to calculate The length in pixels that grating constant is corresponding, direct self manufacture two parafacies " pitch " plate together is (front The background layer stated), a pair is imprinted on PVC transparent plastic sheet as printed panel, forms one and treats Matched FBG sheet, another pair then be used for make the hiding information in " deciphering region ", Manufacture method is ditto described, does not repeats them here.
In sum, the technique of the grating developed image manufacture method that the present invention provides is simple, Without matched FBG being carried out any process, directly by finely tune described straightway width with And the vertical dimension between adjacent two straightways can make the development effect of matched FBG reach More visible state, and the hiding information in " the deciphering region " that be fabricated to has uniquely Property and exclusiveness, mutually the most mixed with his class decoding tool solve.The most also this kind can be made The hiding information in " deciphering region " made by method, directly applies to juvenile's class knowledge Property reading matter and teaching material teach in auxiliary answer class books, can effectively cultivate the learning interest of children And reading ability, real realization is taught through lively activities.
The foregoing is only the preferred embodiments of the present invention, be not limited to this Bright, for a person skilled in the art, the present invention can have various modifications and variations. All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement made Deng, should be included within the scope of the present invention.

Claims (10)

1. a grating developed image manufacture method, it is characterised in that described method includes:
Generate the printing master map with default resolution;
With a length of measurement unit of a pixel under described default resolution, calculate The length in pixels that the grating constant of next preset matching grating of this resolution is corresponding;
In described printing master map, generate some parallel and equally spaced straightway form background Layer, length in pixels corresponding to the live width of described straightway intersegmental with adjacent two straight lines vertical away from From the length in pixels that corresponding length in pixels sum is corresponding equal to described grating constant;
The hiding information that described matched FBG can be used to manifest is made in described background layer, Hiding information includes any one or more in word and figure.
Grating developed image manufacture method the most according to claim 1, its feature exists In, described printing master map generates under pattern bitmap.
Grating developed image manufacture method the most according to claim 1, its feature exists In, the described a length of measurement unit with a pixel under described default resolution, calculate Go out the step in length in pixels corresponding to the grating constant of next preset matching grating of this resolution Suddenly include:
Calculate in next inch of corresponding length in pixels of described default resolution;
According to calculating formulaShow that pixel corresponding to the grating constant of matched FBG is long Degree, wherein, NpBeing one inch of corresponding length in pixels, f is on described preset matching grating Groove sum in per inch, N is the length in pixels that described grating constant is corresponding.
Grating developed image manufacture method the most according to claim 1, its feature exists In, described generate in described printing master map some parallel and equally spaced straightway formed the back of the body In the step of background layer, the angle of inclination of described straightway relatively horizontal orientation is 45 degree, and Vertical intersegmental with described adjacent two straight lines of length in pixels that the width of described straightway is corresponding The difference of the length in pixels that distance is corresponding is less than or equal to 3 pixels, Qi Zhongsuo more than or equal to 2 pixels State length in pixels corresponding to the intersegmental vertical dimension of adjacent two straight lines more than described straightway The length in pixels that width is corresponding.
Grating developed image manufacture method the most according to claim 1, its feature exists In, the described hiding letter that making can use described matched FBG to manifest in described background layer The step of breath includes:
Under grayscale mode, described background layer imports information to be concealed, described to be concealed Information form a new figure layer;
Delete described information to be concealed and retain the constituency of described figure layer;
Again under pattern bitmap, the line segment of the figure layer constituency copy background layer by retaining is formed Another new figure layer, and move described new figure layer along the direction of vertical described straightway, movement Distance is less than the length in pixels that the intersegmental vertical dimension of described adjacent two straight lines is corresponding more than 0.
Grating developed image manufacture method the most according to claim 5, its feature exists The distance moved along the direction being perpendicular to described straightway in, described new figure layer more than described directly Length in pixels corresponding to the live width of the line segment vertical dimension intersegmental with adjacent two straight lines is corresponding The meansigma methods of length in pixels sum and the vertical dimension pair intersegmental less than described adjacent two straight lines The length in pixels answered.
Grating developed image manufacture method the most according to claim 5, its feature exists In, the method also includes:
Before move the constituency of described figure layer along the direction of vertical described straightway, by described The image model of printing master map is converted to pattern bitmap from grayscale mode.
Grating developed image manufacture method the most according to claim 1, its feature exists In, the resolution of described printing master map is 1200dpi.
Grating developed image manufacture method the most according to claim 8, its feature exists In, the groove total value in described matched FBG per inch is between 80~140.
Grating developed image manufacture method the most according to claim 1, its feature exists In, described method also includes:
Described matched FBG is covered in manifest hiding information on described printing master map time, Groove on described matched FBG is parallel to the straightway on described background layer.
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Publication number Priority date Publication date Assignee Title
CN106931893A (en) * 2017-03-10 2017-07-07 黄攸平 The method that grating thin slice pitch is accurately measured based on refraction principle
CN110210471A (en) * 2019-07-19 2019-09-06 南京环印防伪科技有限公司 A kind of image information area location structure and image information area acquisition methods for image rectification

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